By analogy with the binary asteroids thread, this is a thread for the scripts for the binary/multiple stars, which are still represented as solitary star in default SE catalogs. Use the url=http://new.spaceengine.org/manual/making-addons/creating-a-star/]creating a star[/url] manual for this.
Also, feel free to post a request for a binary/multiple star here, if you are not skilled in SE scripts, but want to see this star in SE. Someone could make the script for you.
Each new version of SpaceEngine will collect all scripts from this thread to make an updated version of default catalogs.